Pollen assemblages characteristics of human disturbed vegetation in hilly areas of Shanxi and Hebei Provinces
Li Jie, Xu Qinghai, Cao Xianyong, Tian Fang, Ding Wei, Liang Jian
JOPC . 2014, (2): 227 -238 .  DOI: 10.7605/gdlxb.2014.02.021